As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TRIM WHEEL BINDING BETWEEN 0 DEGREES AND -2 DEGREES WITH NO PRESSURE ON YOKE. SLOW SPEED TRIM WOULD NOT WORK AND USED STABILIZER BRAKE RELEASE. ON DESCENT WHILE TRIMMING THE TRIM WHEEL BECAME STUCK AND ROLLED IN OPPOSITE DIRECTION UP TWO TURNS. *S/D* FOUND STABILIZER TRIM OPERATION NORMAL. REPLACED MAIN ELECTRICACTUATOR PER MM 27-44-05 AS A PRECAUTION. ACCOMPLISHED OP CHECK. SYSTEM OPS CHECKS OK.